sprouts (IMAGE) Penn State Caption Pictured are some of the soil samples used by Laura Kaminsky, a doctoral candidate at PennState, to investigate how soil-clearing practices impact the soil microbiome. Credit Laura Kaminsky, Penn State Usage Restrictions non commercial use only License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.